Special graphics
A variety of special graphics can be used by Visual Novel developers. These graphics are distinct from sprites and CGs and often are used for artistic effect at a notable point in the story.
Chapter Cards
A chapter card, eyecatch, or bumper is (most commonly) an image or (uncommonly) short animation sequence used to designate a transition between chapters or acts. (Different from a simple scene transition.) Usually used to give the reader a moment to stew over the end of an important scene and anticipate the next.
For games that don’t have chapters, it may be used instead to indicate a player has transitioned from the common route to a specific character’s route. When used to indicate a route change, its purpose is to inform the reader which route they’re on and in that case almost always include a picture of the route’s character or something related to the character.
A note on the terms: “Chapter card” is probably the most accurate way to refer to it if its a still image with some sort of indication of the chapter or route on it. “Eyecatch” is probably the term you’d want to use for either a still image or animation sequence if there is no designation of a specific chapter/route. (It comes from the Japanese aikyatchi, which are the sequences around a commercial break which may or may not be animated.) “Bumper” is the Western term for a generally animated sequence that surrounds a commercial break.
Character Splashes
A character splash is a sort of introduction sequence for a (generally important) character, almost always displaying their name/alias in text beside either their sprite or a unique piece of character art and pausing, playing a short animation, or requiring a click from the player before continuing the scene. Character splashes may also have other information (ex: age, occupation, role/relation; etc) in the display and/or other graphical elements besides the character art that are usually repeated for each new character introduced. Often similar to a cut-in. Games that feature character splashes: Collar x Malice [VNDB], Hatoful Boyfriend [VNDB], Danganronpa [VNDB] series.
End Slates
An end slate is special image at the end of a game's route, usually representative of the route's ending mood or the route’s overall theme. The image is usually shown after all of the route's text has finished and often is accompanied by the name of the ending. Typically, these images are completely unique (not recycled assets) and not CGs but more simple/iconic or chibi. Games that feature end slates: Hatoful Boyfriend [VNDB], Long Live the Queen
